首页 理论教育彩色宝石与矿物集萃:玛瑙、玉髓和碧玉-最古老的宝石品种

彩色宝石与矿物集萃:玛瑙、玉髓和碧玉-最古老的宝石品种

【摘要】:Agate Chalcedony Jasper玛瑙、玉髓和碧玉是宝石中历史最悠久的宝石品种,5000年前,人类就有应用。玛瑙和玉髓同属石英质玉石,从外观特征而言,玛瑙具有不同颜色的环带和条纹。从矿物学角度讲,玛瑙是由胶体转变而成的隐晶质石英集合体;而玉髓则未经历胶体阶段,直接生成隐晶质集合体。在宝石学中,宝石学家把玛瑙归属玉髓的变种。玛瑙和玉髓的品种和名称繁多,大都以颜色、形态和产地命名,也有一部分袭用了珠宝市场上的俗称。

Agate Chalcedony Jasper

玛瑙玉髓和碧玉是宝石历史最悠久的宝石品种,5000年前,人类就有应用。玛瑙和玉髓同属石英玉石,从外观特征而言,玛瑙具有不同颜色的环带和条纹。玉髓颜色单一,不具有环带和条纹,但其色域极其宽大。从矿物学角度讲,玛瑙是由胶体转变而成的隐晶质石英集合体;而玉髓则未经历胶体阶段,直接生成隐晶质集合体。在宝石学中,宝石学家把玛瑙归属玉髓的变种。而碧玉为一种含杂质的玉髓。

玛瑙和玉髓的品种和名称繁多,大都以颜色、形态和产地命名,也有一部分袭用了珠宝市场上的俗称。

·德国伊达尔-奥伯斯坦玛瑙矿(Idar-Oberstein agate mine)

Agate, a banded form of chalcedony, is a type of cryptocrystalline quartz with crystals that are too small for its structure to be seen even through the microscope. While both and chalcedony are translucent—coming in a wide variety of bright colors—agate boasts dramatic bands of potentially contrasting colors while chalcedony is plain. Agate and chalcedony are often found in volcanic rocks. Jasper is a type of chalcedony that incorporates varying amounts of other minerals, which give it its opacity and color.

·阿斯玛(玛瑙雕件)

·母岩上的玛瑙矿

·辽宁“战国”玛瑙